Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 d29f6030fc82c182…

MALICIOUS

Office (OLE) / .DOC

139.5 KB Created: 2019-05-15 14:15:00 Authoring application: Microsoft Office Word
MD5: 248fa94284ffa8790e79d628326a3362 SHA-1: b09c69a304e49eb7ae8db6d780cc1e2d5015eaf8 SHA-256: d29f6030fc82c182401170d9f7c16805011d26e3b2e6517be9329aac5f76eab8
340 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.003 Windows Command Shell T1204.002 Malicious File T1059.001 PowerShell

The sample is a malicious OLE document containing a VBA macro. The 'AutoOpen' macro triggers the execution of a WMI Win32_Process launcher via CreateObject and GetObject calls. This is a common technique used by Emotet to download and execute a second-stage payload. ClamAV detection confirms the presence of Emotet. The embedded URL is benign, but the primary threat comes from the macro execution.

Heuristics 9

  • VBA WMI Win32_Process launcher critical OLE_VBA_WMI_PROCESS_CREATE
    VBA macro builds or references a WMI moniker for Win32_Process and invokes .Create to start a command. This is a high-confidence macro execution chain that often hides the WMI class name through string concatenation or helper functions.
  • ClamAV: Doc.Downloader.Emotet-10001946-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-10001946-0
  • AutoOpen macro high OLE_VBA_AUTOOPEN
    AutoOpen macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • GetObject call high OLE_VBA_GETOBJ
    GetObject call
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
b5ba0c84486d718de2867792a98e326ada0ca74cf7d20bc733e325032540831d		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 9245 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.

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